Scaffolding system

Abstract

A side rail system for interconnecting layered sections of elongated scaffold staging with the sections respectively spanning pairs of opposing upper and lower support arms of pump jacks which respectively ride on spaced apart pump jack poles. The side rail system includes upright posts which are spaced along the staging. A pair of rods are associated with each of the posts. The rods confrontingly project from the respective staging sections. The posts are pivotally coupled to the rods and are secured to the rods by quick adjust pins to prevent separation of the rods and posts. A mid-rail as well as a toe board can be interconnected between the rails. An end rail system can also be included. The scaffolding arrangement can be used exteriorly with a brace onto a wall. It can also be used interiorly between roof and floor with appropriate height adjustment arrangement provided.

I claim: 
     
       1. A side rail system for interconnecting layered sections of elongated scaffold staging which sections respectively span pairs of upper and lower support arms of pump jacks respectively riding on spaced apart pump jack poles, each section of scaffold staging including longitudinally spaced transverse hollow rungs, said side rail system comprising upright posts for positioning along the staging, a pair of rods associated with each post, said rods being slidably received within the hollow rungs so as to be confrontingly projecting from the respective upper and lower staging sections, said rods havng stop means at one end thereof for preventing complete passage through the hollow rungs, coupling means for pivotally connecting each post to the projecting ends of the associated rods to permit angled positioning between the post and the rod, removable guard means for preventing separation of the coupled posts and rods, and rail means longitudinally extending between said plurality of posts. 
     
     
       2. A side rail system as in claim 1, wherein said coupling means comprise a U-shaped collar pivotally coupled to each distal end of said post for slidably receiving therethrough the projecting rod ends. 
     
     
       3. A side rail system as in claim 1, wherein said rail means comprise elongated sections of channel members having a vertical wall and perpendicular legs, whereby adjacent sections can be inverted with respect to each other, with respective legs interfitting. 
     
     
       4. A side rail system as in claim 1, wherein said posts comprise a tubular sleeve member, a shaft telescopically secured in said sleeve member to permit adjustment of the posts to the vertical distance between said layered sections, and lock means for preventing complete separation of said shaft from said sleeve. 
     
     
       5. A side rail system as in claim 1, and comprising a U-shaped clamp having opposing side arms and an interconnecting bight portion, aligned bores formed in the distal ends of the arms for slidably receiving said post, a clamping screw threaded into said bight portion and supporting a bearing plate at the distal end thereof for movement in clamping opposition with said post, said rail means extending through a passageway defined between said arms, said bearing plate and said post, and wherein said clamping screw serves to secure both the rail means and the clamp at a desired height on said posts. 
     
     
       6. A side rail system as in claim 5, and wherein said rail means comprise a midrail and a toe board. 
     
     
       7. A side rail system as in claim 1 wherein said rods are bolts and said stop means are an enlarged head at one end of the bolt, and further comprising a transverse hole at the other end of said bolt, and wherein said guard means comprise pins coupled to said posts and selectively insertable into said transverse holes. 
     
     
       8. A side rail system as in claim 7, wherein said pins are quick release pins, and further comprising chains respectively coupling said quick release pins to said posts. 
     
     
       9. A side rail system as in claim 7, and further comprising a U-shaped bar having a pair of legs and an interconnecting bight portion, said legs upwardly projecting through a slot in the support arms and straddling the scaffolding section, aligned bores formed into the distal ends of said legs, one of said bolts extending through the aligned bores and through a hollow rung in the scaffolding section, and a pin slidably insertable into the transverse hole of said one bolt. 
     
     
       10. A side rail system as in claim 9, wherein said pin comprises a quick release pin, and further comprising a chain coupling said quick release pin to said U-shaped bar. 
     
     
       11. A side rail system as in claim 9, wherein said pin comprises a quick release pin, and further comprising a chain coupling said quick release pin to said bolt head. 
     
     
       12. A side rail system as in claim 7, and further comprising an end rail system, comprising a pair of said upright posts spaced at opposing sides of the lower layer of scaffold staging, a bolt passing through a hollow rung adjacent an end of the lower layer of scaffold staging and coupled to the lower ends of said pair of upright posts and an elongated shaft means coupled to the upper end of said pair of upright posts and received in a hollow rung adjacent an end of the upper layer of scaffold staging, said rail means extending between said pair of upright posts. 
     
     
       13. A side rail system as in claim 12, wherein said shaft means comprises a sleeve, a telescopically received rod member and clmaping means for coupling said rod member to said sleeve at an appropriate location to adjust the length of said shaft means to accommodate the width of the scaffold staging. 
     
     
       14. A side rail system as in claim 12, and further comprising a hand rail angularly coupling the upper distal end of said end rail system to the lower layer of scaffold staging at a spaced distance from said end rail system. 
     
     
       15. A side rail system as in claim 14, wherein said hand rail comprises means for adjusting its length.